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Overview of all insider trading transactions in BIOLARGO, INC.. Get notifications about new insider transactions in BIOLARGO, INC. for free.
| Date | Ticker | Company | Owner | Relationship | Transaction | Code | Cost ($) | Shares | Transaction Value ($) | Total Shares | % Holdings |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 03 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.50 | 10,000 | 5,000 | 276,000 | |
| Jul 14 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.45 | 20,000 | 9,000 | 266,000 | |
| May 04 2009 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | President and C.E.O ... | Option Exercise | A | 0.55 | 691,974 | 380,586 | 8,685,233 | |
| May 04 2009 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | President and C.E.O ... | Option Exercise | A | 0.55 | 60,000 | 33,000 | 7,993,259 | |
| May 04 2009 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Option Exercise | A | 0.50 | 114,000 | 57,000 | 134,000 | |
| May 01 2009 | BLGO | BIOLARGO, INC. | PROVENZANO JOSEPH L | V.P. Operations | Option Exercise | A | 0.50 | 30,000 | 15,000 | 130,000 | |
| May 01 2009 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Option Exercise | A | 0.50 | 150,000 | 75,000 | 170,000 | |
| May 01 2009 | BLGO | BIOLARGO, INC. | CODE KENNETH REAY | Chief Technology Of ... | Option Exercise | A | 0.55 | 60,000 | 33,000 | 260,000 | |
| May 01 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.30 | 10,000 | 3,000 | 246,000 | |
| May 01 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.50 | 36,000 | 18,000 | 236,000 | |
| Feb 24 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.28 | 50,000 | 14,000 | 200,000 | |
| Feb 03 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.38 | 10,000 | 3,800 | 150,000 | |
| Jan 08 2009 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Grant | A | 0.59 | 33,898 | 20,000 | 188,603 | 154.7 K to 188.6 K (+21.91 %) |
| Jan 06 2009 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.41 | 10,000 | 4,100 | 140,000 | |
| Dec 02 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.70 | 10,000 | 7,000 | 130,000 | |
| Nov 05 2008 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | Chief Executive Off ... | Gift | G | 0.00 | 190,000 | 0 | 1,321,649 | 1.1 M to 1.3 M (+16.79 %) |
| Nov 03 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.35 | 10,000 | 3,500 | 120,000 | |
| Oct 01 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.89 | 10,000 | 8,900 | 110,000 | |
| Sep 03 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.90 | 10,000 | 9,000 | 100,000 | |
| Aug 01 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 0.99 | 10,000 | 9,900 | 90,000 | |
| Jul 01 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 1.10 | 10,000 | 11,000 | 80,000 | |
| Jun 11 2008 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | Chief Executive Off ... | Gift | G | 0.00 | 150,000 | 0 | 1,511,649 | 1.7 M to 1.5 M (-9.03 %) |
| Jun 03 2008 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Option Exercise | A | 1.55 | 10,000 | 15,500 | 20,000 | |
| Jun 02 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 1.55 | 10,000 | 15,500 | 70,000 | |
| Jun 03 2008 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Option Exercise | A | 1.55 | 10,000 | 15,500 | 20,000 | |
| May 01 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 1.65 | 10,000 | 16,500 | 60,000 | |
| Mar 19 2008 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Gift | G | 0.00 | 5,000 | 0 | 405,337 | 410.3 K to 405.3 K (-1.22 %) |
| Mar 19 2008 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Gift | G | 0.00 | 5,000 | 0 | 410,337 | 415.3 K to 410.3 K (-1.20 %) |
| Feb 04 2008 | BLGO | BIOLARGO, INC. | DARGAN CHARLES K | Chief Financial Off ... | Option Exercise | A | 1.89 | 50,000 | 94,500 | 50,000 | |
| Jan 03 2008 | BLGO | BIOLARGO, INC. | CODE KENNETH REAY | Chief Technology Of ... | Option Exercise | A | 1.03 | 200,000 | 206,000 | 200,000 | |
| Jan 02 2008 | BLGO | BIOLARGO, INC. | PROVENZANO JOSEPH L | Corporate Secretary | Option Exercise | A | 0.94 | 100,000 | 94,000 | 100,000 | |
| Jan 02 2008 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | Chief Executive Off ... | Option Exercise | A | 0.94 | 200,000 | 188,000 | 2,762,439 | |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | PROVENZANO JOSEPH L | Corporate Secretary | Buy | J | 0.63 | 7,778 | 4,900 | 600,777 | 593 K to 600.8 K (+1.31 %) |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Buy | J | 0.63 | 15,874 | 10,001 | 144,288 | 128.4 K to 144.3 K (+12.36 %) |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Buy | C | 0.63 | 17,645 | 11,028 | 128,414 | 110.8 K to 128.4 K (+15.93 %) |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | Marshall Dennis E | Director | Buy | J | 0.65 | 30,769 | 20,000 | 110,769 | 80 K to 110.8 K (+38.46 %) |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Buy | J | 0.63 | 10,318 | 6,500 | 409,087 | 398.8 K to 409.1 K (+2.59 %) |
| Oct 22 2007 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Buy | J | 0.65 | 30,769 | 20,000 | 398,769 | 368 K to 398.8 K (+8.36 %) |
| May 02 2007 | BLGO | BIOLARGO, INC. | IOWC Technologies, Inc. | 10% Owner | Buy | P | 0.00 | 22,139,012 | 0 | 22,759,649 | 620.6 K to 22.8 M (+3,567.14 %) |
| Apr 17 2007 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | Chief Executive Off ... | Buy | C | 0.55 | 1,636,364 | 900,000 | 2,728,439 | 1.1 M to 2.7 M (+149.84 %) |
| Mar 19 2007 | BLGO | BIOLARGO, INC. | Marshall Dennis | Director | Buy | J | 0.02 | 80,000 | 1,200 | 80,000 | 0 to 80 K |
| Mar 19 2007 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Buy | J | 0.02 | 288,000 | 4,320 | 368,000 | 80 K to 368 K (+360.00 %) |
| Mar 19 2007 | BLGO | BIOLARGO, INC. | PROVENZANO JOSEPH L | Corporate Secretary | Buy | J | 0.02 | 264,001 | 3,960 | 592,999 | 329 K to 593 K (+80.24 %) |
| Mar 19 2007 | BLGO | BIOLARGO, INC. | CALVERT DENNIS P | President and CEO | Buy | J | 0.02 | 900,790 | 13,512 | 1,092,075 | 191.3 K to 1.1 M (+470.92 %) |
| Jul 18 2005 | BLGO | BIOLARGO, INC. | PROVENZANO JOSEPH L | Secretary | Grant | A | 0.01 | 4,000,000 | 40,000 | 8,224,936 | 4.2 M to 8.2 M (+94.68 %) |
| Jul 18 2005 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Grant | A | 0.01 | 1,000,000 | 10,000 | 2,000,000 | 1000 K to 2 M (+100.00 %) |
| Jul 18 2005 | BLGO | BIOLARGO, INC. | HARRISON STEVEN V | Director | Grant | A | 0.01 | 1,000,000 | 10,000 | 2,112,043 | 1.1 M to 2.1 M (+89.92 %) |
| Oct 15 2004 | BLGO | BIOLARGO, INC. | RUIZ EDUARDO | 10% Owner | Sell | J | 0.00 | 15,000,000 | 0 | 0 | 15 M to 0 (-100.00 %) |
| Oct 15 2004 | BLGO | BIOLARGO, INC. | RUIZ LUIS | 10% Owner | Sell | J | 0.00 | 15,000,000 | 0 | 0 | 15 M to 0 (-100.00 %) |
| Mar 30 2004 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Grant | A | 0.04 | 1,000,000 | 40,000 | 1,000,000 | 0 to 1000 K |
| Mar 30 2004 | BLGO | BIOLARGO, INC. | HARRISON STEVEN V | Director | Grant | A | 0.04 | 1,000,000 | 40,000 | 1,112,043 | 112 K to 1.1 M (+892.51 %) |
| Dec 02 2003 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Sell | S | 0.04 | 200,000 | 7,000 | 0 | 200 K to 0 (-100.00 %) |
| Sep 19 2003 | BLGO | BIOLARGO, INC. | HARRISON STEVEN V | Director | Sell | S | 0.07 | 55,000 | 3,850 | 167,043 | 222 K to 167 K (-24.77 %) |
| Sep 19 2003 | BLGO | BIOLARGO, INC. | HARRISON STEVEN V | Director | Sell | S | 0.05 | 100,000 | 5,250 | 222,043 | 322 K to 222 K (-31.05 %) |
| Aug 05 2003 | BLGO | BIOLARGO, INC. | COX GARY ADRIAN | Director | Grant | A | 0.00 | 200,000 | 0 | 200,000 | 0 to 200 K |
| Sep 24 2003 | BLGO | BIOLARGO, INC. | HARRISON STEVEN V | Director | Sell | S | 0.07 | 55,000 | 3,850 | 112,043 | 167 K to 112 K (-32.93 %) |